Toytec 3" lift kit and u-bolts

Hey guys I just bought the toytec 3 inch lift kit with OME 884's up front and just an add a lead in the rear. I have the non tsb spring pack in the rear and I am just looking over everything and it looks like my u-bolts dont have a whole lot of play in them... Maybe a little over a half inch left? Will I have enough room on those u-bolts to add the leaf and put it all back together??? Toytec didnt say anything about needing new u bolts

Just measure the thickness of the aal and measure how much thread u have on the u-bolt. If you don't have long enough U-bolts common sense would say u need new ones... it's not like they're really expensive